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04-09-2006, 04:35 PM
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#1
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Finally: MPFI and OBD1 Swap Completed
This is basically a bragging thread. Did all the work myself, even the wiring, oh no! Even the ecu chipping,  !
Here's my OBD1 ecu that I chipped and never put a case on, I tell people not to kick it but other then that I don't give a damn.
WTF! My first engine shot ever!
Close up of the intake manifold and ****. I'm still using stock 240cc injectors, will swap them soon to the CX/VX 190cc injectors.
Wrong throttle cable bracket, barely holding on!
Kickdown cable? Where's that go? :P
The clamp making the intake arm think it's 16mm smaller than it is,  40mm TBs are the ****.
Hacked off the end of my intake box to barely fit this thing on.
But most of all, it's done! 35.6 MPG with a rather severe vacuum leak, hoping to be up there with it fixed, and it's still an auto!!!
Last edited by Matt Timion : 09-14-2006 at 01:47 PM.
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04-09-2006, 06:35 PM
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#2
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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****, now I still have
****, now I still have surging idle at warm up, dunno where to start working on that, any ideas? It's not like I ever idle during warmup, but still.
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04-09-2006, 06:57 PM
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#3
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Member
Join Date: Apr 2006
Location: Columbus
Posts: 315
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idle surge is either a vac
idle surge is either a vac leak,IACV,ir FITV
since you mentioned startup...could be the FITV
though it doesn't directly cause surging
it is a piece of wax heated by coolant...when the car warms up it closes off the port reducing air bypass...and lowers the idle...
probably a vac leak...did you use a new intake mani gasket...?
typical to have a leak there...
check all your vac hoses for cracking
take off your IACV and clean the screen
also cx/vx injectors are 240cc
the 190cc injectors were on the obd2 hx motor and maybe the y7 cx...
you would have to splice in the obd2 clips to use those...
and the gains would probably eliminate themselves due to the function of the o2 sensor compensation...
also i have an ecu cover to send you...
its not worth risking a spilled drink etc on ruining your ecu and a ruining car dude...
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04-09-2006, 07:00 PM
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#4
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Flying Under the Radar
Join Date: Feb 2006
Location: Raliegh, NC
Posts: 1,694
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COngrats on the swap! I
COngrats on the swap! I expect some competition from you now.
Sorry I can't help with the surging idle thing. If I had that problem I would ask you what to do.
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04-09-2006, 07:02 PM
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#5
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Quote:since you mentioned
Quote:
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since you mentioned startup...could be the FITV
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I have no iacv. Also, I previously had a vacuum leak from the bad pcv, but I no longer do, this is only during startup. The iacv is fine also, I have cleaned the hell out of it and it was sent from jared with it working.
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probably a vac leak...did you use a new intake mani gasket...?
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I did. I have also sprayed carb cleaner in every reasonable spot to verify it isn't sucking it in. Also, with the pcv leak going block that and the iacv it died, not getting air from anywhere else.
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also cx/vx injectors are 240cc
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I swear they are 190cc, and the idea is for a finer spray pattern, I will adjust the chip accordingly to say they are 190cc. |
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04-09-2006, 07:02 PM
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#6
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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I won't be competing with
I won't be competing with you until I'm manual. I'll talk to disco about it later and see what he has to say.
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04-09-2006, 07:14 PM
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#7
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Member
Join Date: Apr 2006
Location: Columbus
Posts: 315
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you have an IACV i can see
you have an IACV i can see it in the pictures...
its on all intakes
if you mean it isn't hooked up then you will throwing codes on your computer and is DEFINATELY the reason you are surging...
the hunting is cause by something...
its merely being missed or a faulty component...
what ecu are you running...?
if its chipped then what stock map did you use and what program (uber or crome)
peace
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04-09-2006, 07:15 PM
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#8
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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EDIT: I have no FITV,
EDIT: I have no FITV, sorry.
It's hooked up and fine, when I had it unhooked it didn't surge anyway.
Crome, P06 map, disabled o2 heater.
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04-09-2006, 07:21 PM
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#9
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Member
Join Date: Apr 2006
Location: Columbus
Posts: 315
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burn a new rom and play with
burn a new rom and play with the iacv duty cycle in options
see if that changes it
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04-09-2006, 07:24 PM
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#10
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Got any suggestions on how
Got any suggestions on how to do such? It idles awfully high during warm up also, so I think I might need to fudge around with the ECT compensation also.
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04-09-2006, 07:26 PM
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#11
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Member
Join Date: Apr 2006
Location: Columbus
Posts: 315
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if you have ever done a map
if you have ever done a map hack...
that is the extent that changing injector sizes (within reason like from 240-190) will have...
none
now changing your fuel maps is another thing
but you can just do that with the 240's which reduces their duty cycle in the same...
so run 190's at higher duty cycle to achieve the same a/f
or run 240's at lower duty cycle to achieve the same a/f
your choice...same outcome
as far as spray pattern...definately arguable...
there's more gains to be had by shipping any of them off to be cleaned professionally on the machine...
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04-09-2006, 07:27 PM
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#12
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Yep yep, I'm aware I'm
Yep yep, I'm aware I'm aware. I'm just going to go on the theory of better spray and also the idea that I can sell my 240s at some point in time.
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04-09-2006, 07:36 PM
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#13
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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I can think right now this
I can think right now this might be the classic cx manifold surging idle issue that I have a pdf from honda on. Have to try it out soon.
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04-09-2006, 07:50 PM
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#14
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Member
Join Date: Apr 2006
Location: Columbus
Posts: 315
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classic cx manifold surging
classic cx manifold surging issue...?
please post this pdf
did you just remember you had this file...?
i would think this negates any reasoning for posting this thread at all
except to maybe make me feel foolish for having never read such datum
lol
oh i can see your fitv too...its under the throttlebody
it has coolant input...and then output goes to the iacv...and then back to the block...
actually i'm not sure which direction it flows...
but it might be good to unhook the line and make sure coolant is in fact flowing at all...
personally i removed all my coolant lines to lower/balance intake air charge temps...
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04-09-2006, 07:54 PM
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#15
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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I posted this thread cuz I
I posted this thread cuz I was excited, then later I realized the issue. I'll find the pdf later, but the jist of it is that sometimes it surges and you need to unplug the iacv, set the idle rpm with the screw, then plug the iacv back in. It was the first thing I tried when I had the vacuum leak.
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04-09-2006, 07:59 PM
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#16
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Member
Join Date: Apr 2006
Location: Columbus
Posts: 315
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all good man
and congrats on
all good man
and congrats on a successful conversion...
your problems are small...and should be solvable...
awesome
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04-09-2006, 08:03 PM
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#17
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Haha, this damn car stresses
Haha, this damn car stresses me out sometime is all. Definately solvable. I mean, I figure eventually the whole damn engine is coming out, |
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04-09-2006, 09:06 PM
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#18
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Sweet my own title
Join Date: Feb 2006
Location: Surrey B.C
Posts: 494
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i'm very impressed on how
i'm very impressed on how you are doing the swaps all alone, where did you get such knowledge unless you went on a reading marathon.
__________________
If your reading this, then good for you, your saving some gas because your here.
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04-09-2006, 09:09 PM
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#19
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Quote:where did you get such
Quote:
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where did you get such knowledge unless you went on a reading marathon.
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I am a student, and love to be a student.
Seriously though, since I got the car, I've read basically ever 92-00 civic thread on honda-tech, read everything on www.pgmfi.org, and many many other assorted things. Also had a good bud to ask questions too here and there. |
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04-09-2006, 11:40 PM
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#20
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Lisa is my new GF :-D
Join Date: Sep 2005
Posts: 252
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how did u run an obd0 auto
how did u run an obd0 auto tranny off the ecu? what wire/pin did u use for the lockup? i wana convert to obd1 too but i might stay auto for a while.
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04-09-2006, 11:43 PM
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#21
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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I'll check the pin for you
I'll check the pin for you tomorrow, think it's a19 offhand though. I'm using a manual ecu by the way.
OBD1 has two pins for the lockup, one full and one partial. Neglect the partial one and get the full (a19 I think) and I just wired it to 12v. It kicks on like normal due to pressure just being constantly wired. I have a switch though to keep it off during cold starts and such, pretty simple.
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04-10-2006, 01:13 AM
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#22
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Member
Join Date: Apr 2006
Location: Columbus
Posts: 315
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how bout a closer picture of
how bout a closer picture of your ecu
there's no way its a manual
unless you added the high-side switch
i can see the high-side switch in the picture already
which is what controls the 12v/ground output on A19
thats an auto ecu bub
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04-10-2006, 08:25 AM
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#23
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Yes, I added the 5151s, but
Yes, I added the 5151s, but for whatever reason it still will not engage the torque converter, so I said screw it, a friend is sending me a free auto p06 any day now so I'm not worried. A stock auto would come with two 5151s anyway.
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04-10-2006, 09:28 AM
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#24
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Flying Under the Radar
Join Date: Feb 2006
Location: Raliegh, NC
Posts: 1,694
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Another freebie for SVOboy!
Another freebie for SVOboy!
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04-10-2006, 11:18 AM
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#25
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Yeah well, I try to be
Yeah well, I try to be helpful.
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04-10-2006, 04:15 PM
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#26
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Moderator
Join Date: Oct 2005
Location: Newnan, GA
Posts: 1,615
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Congrats! I can't wait to
Congrats! I can't wait to do my 5-speed conversion then my MPFI/OBD-1 conversion!
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04-10-2006, 06:02 PM
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#27
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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Thanks, bud, I'm too excited
Thanks, bud, I'm too excited for 5 speed! |
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04-14-2006, 08:15 PM
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#28
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Lisa is my new GF :-D
Join Date: Sep 2005
Posts: 252
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use a civic SI or EX intake
use a civic SI or EX intake tube. fits nice and snug. dont know if it will fit obd1 manis but worth a shot
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04-14-2006, 08:17 PM
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#29
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*shrug*
Join Date: Sep 2005
Posts: 7,406
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It won't fit my manifold,
It won't fit my manifold, those are built for 52mm tbs or whatev, mine is 40mm. I need the cx or vx arm and airbox, which ought to be in the mail for me already.
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04-14-2006, 09:05 PM
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#30
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3 pedals>*
Join Date: Oct 2005
Posts: 2,024
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more free parts?
more free parts?:lol:
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